Part 3.

Which of the following subshells does not exist? a. 6g b. 3f c. 3p d. 2s e. 4d

b. 3f

Which of the following combinations of quantum numbers is permissible? a. n = 1, l = 2, ml = 0, ms = -1/2 b. n = 3, l = 2, ml = 1, ms = +1/2 c. n = 3, l = 3, ml = 1, ms = +1/2 d. n = 2, l = 1, ml = -1, ms = 0 e. n = 4, l = 3, ml = 4, ms = -1/2

b. n = 3, l = 2, ml = 1, ms = +1/2

Rank the following regions of the electromagnetic spectrum in order of decreasing frequency.X rays, Microwaves, Infrared, Ultraviolet a. infrared, microwaves, ultraviolet, x rays b. x rays, microwaves, infrared, ultraviolet c. microwaves, infrared, ultraviolet, x rays d. microwaves, ultraviolet, infrared, x rays e. x rays, ultraviolet, infrared, microwaves

c. Enthalpy is an intensive property

Which of the following statements about enthalpy is false? a. Enthalpy is a state function. b. At constant pressure, the enthalpy change is equal to the heat absorbed or released. c. Enthalpy is an intensive property. d. The change in enthalpy of a process can be negative. e. The SI unit of enthalpy is J.

c. Enthalpy is an intensive property

How much heat is liberated at constant pressure if 0.833 g of calcium carbonate reacts with 59.7 mL of 0.251 M hydrochloric acid?CaCO3(s)+2HCl(aq)→CaCl2(aq)+H2O(l)+CO2(g); ΔH°=-15.2kJ a. 0.113 kJ b. 0.24 kJ c. 12.6 kJ d. 0.126 kJ e. 3.81 kJ

a. 0.113 kJ

What is the wavelength of a photon having a frequency of 1.65 X 1015 s-1? a. 182 nm b. 5.5 x 10-2nm c. 1.21 x 10-31 nm d. 0.328 nm e. 1.09 x 10-9nm

a. 182 nm

Which of the following sets of quantum numbers (n, l, ml,ms) is not permissible? a. 2 2 1 +1/2 b. 3 1 0 -1/2 c. 2 0 0 +1/2 d. 2 1 0 +1/2 e. 4 0 0 -1/2

a. 2 2 1 +1/2

Which orbital or orbitals is/are specified by the set of quantum numbers n= 2 and l= 1? a. 2p b. 3s c. 4d d. 1f e. 2d

a. 2p

Which of the following statements is incorrect? a. As the energy of a photon increases, its frequency decreases. b. As the wavelength of a photon increases, its energy decreases. c. The product of wavelength and frequency of electromagnetic radiation is a constant. d. As the wavelength of a photon increases, its frequency decreases. e. As the frequency of a photon increases, its wavelength decreases.

a. As the energy of a photon increases, its frequency decreases.

Place the following forms of electromagnetic radiation in order of decreasing energy: Gamma ray Infrared Microwave a. Gamma ray > Infrared > Microwave b. Gamma ray > Microwave > Infrared c. Infrared > Microwave > Gamma ray d. Infrared > Gamma ray > Microwave e. Microwave > Infrared > Gamma ray

a. Gamma ray > Infrared > Microwave

When an electron in an atom makes a transition from n = 4 to n = 5, which of the following statements is/are correct? I.Energy is emitted. II.Energy is absorbed. III.The electron loses energy. IV.The electron gains energy. V.The electron cannot make this transition. a. II and IV b. II and III c. I and IV d. I and III e. V

a. II and IV

An atom of which of the following elements has the smallest first ionization energy? a. Rb b. Si c. F d. P e. Ca

a. Rb

Two metals of equal mass with different heat capacities are subjected to the same amount of heat. Which undergoes the smaller change in temperature?a. The metal with the higher heat capacity undergoes the smaller change in temperature. b. Both undergo the same change in temperature. c. You need to know the initial temperatures of the metals. d. You need to know which metals you have. e. The metal with the lower heat capacity undergoes the smaller change in temperature.

a. The metal with the higher heat capacity undergoes the smaller change in temperature.

Which of the following statements is incorrect? a. The set of quantum numbers n = 3, l = 2, ml = 0, ms = is not permitted because ml = 0 .b. The set of quantum numbers n = 2, l = 2, ml = 1, ms = is not permitted because n = l. c. The set of quantum numbers n = 3, l = 2, ml = 1, ms = is permitted. d. The set of quantum numbers n = 3, l = 2, ml = 3, ms = is not permitted because mlexceeds l. e. The set of quantum numbers n = 4, l = 3, ml = -1, ms = 0 is not permitted because ms= 0.

a. The set of quantum numbers n = 3, l = 2, ml = 0, ms = is not permitted because ml = 0

In Bohr's atomic theory, when an electron moves from one energy level to another energy level more distant from the nucleus, a. energy is absorbed. b. light is emitted. c. energy is emitted. d. no change in energy occurs. e. none of these

a. energy is absorbed.

Which of the following reactions corresponds to the thermochemical equation for the standard enthalpy of formation of solid strontium nitrate? a. Sr2+(aq) + 2NO3-(aq) → Sr(NO3)2(s) b. Sr(OH)2(s) + 2HNO3(aq) → Sr(NO3)2(s) + 2H2O(l) c. Sr(s) + N2(g) + 3O2(g) → Sr(NO3)2(s) d. Sr(s) + 2HNO3(aq) → Sr(NO3)2(s) + H2(g) e. Sr(s) + 2N(g) + 6O(g) → Sr(NO3)2(s)

c. Sr(s) + N2(g) + 3O2(g) → Sr(NO3)2(s)

Which type of electromagnetic radiation has the highest energy? a. red light b. x rays c. gamma rays d. microwaves e. blue light

c. gamma rays

Which type of electromagnetic radiation has the shortest wavelength? a. red light b. x rays c. gamma rays d. microwaves e. blue light

c. gamma rays

Which of the following is/are true about electromagnetic radiation?1.Wavelength is inversely proportional to frequency. 2.Frequency has units of s-1 or Hz. 3.Waves of different wavelengths travel at different speeds in a vacuum. a. 1 only b. 2 only c. 3 only d. 1 and 2 e. 1, 2, and 3

d. 1 and 2

Which of the following statements about enthalpy is false? a. Enthalpy is a state function. b. At constant pressure, the enthalpy change is equal to the heat absorbed or released. c. Enthalpy is an extensive property. d. The change in enthalpy of a process cannot be negative. e. The SI unit of enthalpy is J.

d. The change in enthalpy of a process cannot be negative.

Which of the following atomic properties, in general, increases from left to right across a period in the periodic table? a. ionic charge b. atomic radius c. bond length d. ionization energy e. metallic character

d. ionization energy

All the following statements about the quantum numbers are true except a. ml has 2l + 1 possible values. b. n may take integral values from 1 to ∞. c. ml may take integral values of +l to -l, including zero. d. l may take integral values from 1 to n - 1. e. ms may take only the values of +1/2 and -1/2

d. l may take integral values from 1 to n - 1.

Which type of electromagnetic radiation has the longest wavelength? a. red light b. x rays c. gamma rays d. microwaves e. blue light

d. microwaves

Each of the following sets of quantum numbers is supposed to specify an orbital. Choose the one set of quantum numbers that does not contain an error. a. n= 2,l = 2,ml =−1 b. n= 2,l = 2,ml = 0 c. n= 3,l = 2,ml =−3 d. n= 4,l = 3,ml =−2 e. n= 4,l = 2,ml =+4

d. n= 4,l = 3,ml =−2

t constant pressure, the sign of q for the process CO2(s) → CO2(g) is expected to be a. positive, and the process is exothermic. b. negative, and the process is exothermic. c. impossible to predict. d. positive, and the process is endothermic. e. negative, and the process is endothermic.

d. positive, and the process is endothermic.

Calculate ΔU of a gas for a process in which the gas absorbs 29 J of heat and does 31 J of work by expanding. a. 2 J b. 60 J c. -60 J d. 0, because ΔU is a state function e. -2 J

e. -2 J

Which of the following concerning the formation of ions is/are correct?1.Elements with large electron affinities tend to form monoatomic anions. 2.No ionic compounds are found with cations having charges greater than the element group number. 3.Group 1A and 2A metals always have a positive charge equal to their group number in their ionic compounds. a. 1 only b. 2 only c. 3 only d. 1 and 2 e. 1, 2, and 3

e. 1, 2, and 3

What is the quantity of heat evolved at constant pressure when 30.5 g H2O(l) is formed from the combustion of H2(g) and O2(g)? H2(g) + O2(g) → H2O(l); ΔH° = -285.8 kJ a. 5.92 × 10-3 kJ b. 285.8 kJ c. 8.72 × 103 kJ d. 168 kJ e. 4.84 × 102 kJ

e. 4.84 × 102 kJ

In a certain experiment, 0.7000 mol of hydrogen gas reacted with 0.7000 mol of solid iodine at a constant 1 atm pressure, producing 1.4000 mol of solid hydrogen iodide and absorbing 36.9 kJ of heat in the process. Which of the following thermochemical equations correctly describes this experiment? a. H2(g) + I2(s) → 2HI(s); ΔH° = -52.71 kJ b. H2(g) + I2(s) → 2HI(s); ΔH° = 36.9 kJ c. H2(g) + I2(s) → 2HI(s); ΔH° = -36.9 kJ d. H2(g) + I2(s) → 2HI(s); ΔH° = 73.8 kJ e. H2(g) + I2(s) → 2HI(s); ΔH° = 52.71 kJ

e. H2(g) + I2(s) → 2HI(s); ΔH° = 52.71 kJ

Which of the following sentences accurately describes the thermochemical equation given below? 2Ag(s) + F2(g) → 2AgF(s); ΔH = -409.2 kJ a. If 2 mol of silver metal react with 1 mol of fluorine gas at constant volume, 2 mol of solid sodium fluoride is produced and 409.2 kJ of heat is consumed. b. If 2 atoms of silver metal react with 1 molecule of fluorine gas at constant pressure, 2 formula units of solid sodium fluoride are produced and 409.2 kJ of heat is released. c. If 2 atoms of silver metal react with 1 molecule of fluorine gas at constant pressure, 2 formula units of solid sodium fluoride are produced and 409.2 kJ of heat is consumed. d. If 2 mol of silver metal react with 1 mol of fluorine gas at constant pressure, 2 mol of solid sodium fluoride is produced and 409.2 kJ of heat is consumed. e. If 2 mol of silver metal react with 1 mol of fluorine gas at constant pressure, 2 mol of solid sodium fluoride is produced and 409.2 kJ of heat is released.

e. If 2 mol of silver metal react with 1 mol of fluorine gas at constant pressure, 2 mol of solid sodium fluoride is produced and 409.2 kJ of heat is released.

Which of the following statements is incorrect? a. The n = 3 shell has three p orbitals. b. Every p subshell has three orbitals. c. The n = 4 shell has seven f orbitals. d. An s orbital has a spherical shape. e. The n = 2 shell has five d orbitals.

e. The n = 2 shell has five d orbitals.

Based on the photoelectric effect, Einstein proposed the idea that a. the energy of a single particle or photon of light is inversely proportional to its frequency. b. the wavelength of light is inversely proportional to its frequency. c. particles can show characteristics of waves under certain experimental conditions. d. the energy of an object is proportional to its mass. e. light has particle-like properties.

e. light has particle-like properties.

Which of the following does not result in a change in the internal energy of the system? a. work is done on the system b. work is done on the surroundings c. heat flows into the system d. heat flows to the surroundings e. none of the above

e. none of the above

The Pauli exclusion principle states that a. the wavelength of a photon of light times its frequency is equal to the speed of light. b. no two electrons in the same atom can have the same set of four quantum numbers. c. both the position of an electron and its momentum cannot be known simultaneously very accurately. d. the wavelength and mass of a subatomic particle are related by . e. an electron can have either particle character or wave character.

no two electrons in the same atom can have the same set of four quantum numbers.